Featuring the Milwaukee® ECX™ bits and hardened tips, the 11 In. 1 screwdriver includes the 9 bit, including a Robertson drive and nut drivers most requested by professionals. The Milwaukee ECX™ bit prevents bit wear from hardened screws and extends bit life when fastening specialty screws found in electrical boxes, conduit couplers, outlets, and other common job site fixtures. The integrated gut hook and wire stripper also increase utility.